Chroma key compositing or green screen is a process for compositing a pair of images or frames with each other wherein a green color is taken away, unveiling another image behind it. This method is also called color keying and frequently uses a specific shade of green or blue. These colors would be the furthest away from skin tone that regardless of ethnic background, are very different contrasts of pink. As outlined by Wikipedia, green is presently applied as a backdrop more than any other color because image sensors in digital video cameras usually are most sensitive to green. The magic occurs in the video editing software program as it looks for the particular shade of green as well as replaces it with the desired backdrop.
The purity of the green screen color is another important issue. In case the green screen lacks purity of color, the resulting matte is going to forfeit fine-edge details like hair. Make sure to make use of fabrics as well as paints that are particularly made for green screen shots. While it helps to use colored lights or gels, be aware that they don't glow on the talent as this will put serious green spill problems during compositing. As soon as the green screen lighting is set properly, its lights can be switched off and the lights for the talent switched on. This is to ensure that the talent's light will not contaminate the green screen and that the talent is lit for the supposed setting they will be composited into.
Many green screen shots are a part of a match move sequence in which the green screen layer has to be motion tracked during compositing to move it with the background. Tracking markers are placed on the green screen. The color of the tracking markers isn't important as they can be easily keyed, painted, or rot scoped out, yet their shape and size is significant.
When shooting green screens with video, the very first principle will be to turn off the video camera's edge sharpening feature. All video cameras have this attribute, referred to as sharpness or detail or some other name, that is intended to help make the picture appear sharper than the digital camera actually captures. The dilemma is that this sharpening adds edge artifacts that would seriously worsen the composite. The picture can be sharpened during compositing. Combining these lower color sampling digital cameras with the normal image compression that all modern digital cameras are now using results in an image that produces very poor quality composites.
In selecting the suitable Los Angeles green screen studio you need to be certain that the color is totally uniform as well as the surface completely flat. The screen likewise has to have the proper measurements. It is recommended that you go through every shot you plan and then measure the screen area so that you get the right measurements. Make allowance for a little additional in the event you would like to dilate or frame the shot more than you had visualized. Examine the area on each side of the screen to ensure that there's sufficient room to place your lights. Finally, get the most possible space between your characters or props and the screen itself. This would make the job of lighting much easier.
The purity of the green screen color is another important issue. In case the green screen lacks purity of color, the resulting matte is going to forfeit fine-edge details like hair. Make sure to make use of fabrics as well as paints that are particularly made for green screen shots. While it helps to use colored lights or gels, be aware that they don't glow on the talent as this will put serious green spill problems during compositing. As soon as the green screen lighting is set properly, its lights can be switched off and the lights for the talent switched on. This is to ensure that the talent's light will not contaminate the green screen and that the talent is lit for the supposed setting they will be composited into.
Many green screen shots are a part of a match move sequence in which the green screen layer has to be motion tracked during compositing to move it with the background. Tracking markers are placed on the green screen. The color of the tracking markers isn't important as they can be easily keyed, painted, or rot scoped out, yet their shape and size is significant.
When shooting green screens with video, the very first principle will be to turn off the video camera's edge sharpening feature. All video cameras have this attribute, referred to as sharpness or detail or some other name, that is intended to help make the picture appear sharper than the digital camera actually captures. The dilemma is that this sharpening adds edge artifacts that would seriously worsen the composite. The picture can be sharpened during compositing. Combining these lower color sampling digital cameras with the normal image compression that all modern digital cameras are now using results in an image that produces very poor quality composites.
In selecting the suitable Los Angeles green screen studio you need to be certain that the color is totally uniform as well as the surface completely flat. The screen likewise has to have the proper measurements. It is recommended that you go through every shot you plan and then measure the screen area so that you get the right measurements. Make allowance for a little additional in the event you would like to dilate or frame the shot more than you had visualized. Examine the area on each side of the screen to ensure that there's sufficient room to place your lights. Finally, get the most possible space between your characters or props and the screen itself. This would make the job of lighting much easier.
About the Author:
There are so many other sites offering various forms of advice on how to use green screen but most of them are not very specific or concise. Before following these, make sure to check my own articles and reviews on Green Screen Studio Los Angeles and Green Screen Studio.
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